Chair-seat



Unire STATES ATENT FFICE.

CHAIR-SEAT.

SPECIFICATION forming part of Letters Patent No. 236,153, dated January 4, 1881.

Application filed April 5, 1880. (No model.)

To all whom it 'may concern."

Be it known that I, ADELBERT S. GAY, a citizen of the United States, residing at Summit Station, in the county of Onondaga and State of New York, have invented certain new and useful Improvements in Chair-Seats; and I do herebydeclare that the following is a full, clear, and exact description of the same, reference being' had to the annexed drawings, making a part of this specitication, and to the letters and figures of reference marked thereon.

Figure l of the drawings is an under-side plan view of a chair-seat constructed in accordance with my invention; and Fig. 2 is a sectional view-of the seat, taken on line yy, the seat being in a reverse position to that in Fig. l, with one or more of the slats removed to show the groove in the back rail of the seatframe.

The present invention has relation to that class of chair-seats composed .of a series of wooden slats.

Previous to my invention the wooden slats to form the chair-seat have been connected to the frame thereof at short distances apart, their ends secured in channels or grooves cut in the back and front of the seat-frame. Ohairseats have also been formed of a series of wooden slats, connected together bya metallic strip passing transversely through holes in each one of the several slats, and it was common to unite the slats to a backing of textile fabric, or support the slats upon thin steel or other suitable metal. A more recent method, however, of connecting the slats together to form the chair-seat was by a dovetail tongue and groove upon the slats, by which they were united and held together at their edges. The wooden slats were also formed with a V-shape convex edge on one side and a corresponding concave edge on the other side, or, in other words, a V shape tongue and groove, such construction admitting of the slats being connected together to form the chair-seat. These various methods of constructing slat-bottom chair-seats, as above set forth, are wholly dissimilar to a chair-seat constructed in accordance with my invention, which consists in forming the slats diamond shape and arranging them in the seat-frame so that the beveled or inclined edges of each slat will lap the one adjoining it, thus obtaining a seat with the required strength and durability,as well as cheapness, there being no danger of the slats warping out of place or springing apart and lying top of each other.

In the accompanying drawings, A represents the chair-posts, to which are connected the side and end rails, B C, the same composing the frame of the seat.

The end rails, C, are grooved or cutaway as shown at a, to correspond in depth to the thickness of the slats which support the front and rear slats of the seat.

The side rails, B, are formed with longitudinal grooves b, to receive and support the ends of the slats D and hold them together within the seat-frame.

A hoop-iron or metal strap, E, is secured under the seat by drawing the ends down through the end rails, O, and bending them partially around the same, or any other convenient means may be employed for fastening the ends of the strap.

rIhe slats D are of wood, and are Adiamond shape in cross-section, as shown in Fig. 2. When the slats are placed together in their proper relative position within the seat-frame, the beveled or inclined edges of each slat Will lap the one adjoining it in width a distance equal, or nearly so, to the surface width ofthe slat. Thus each slat is securely held from displacement by the adjoining one.

If pressure be brought to bear on any one of the several slats, it cannot slip by the one upon which it laps, owingl to the extent of width ot' the lap, which also prevents the slats from warping and springing out of place, thereby retaining their position in the seatframe with the necessary degree of spring or elasticity to the slats to form an easy and comfortable seat to sit in.

Having now fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A chainseat composed of a series of diamond-shape slats, their beveled or inclined In testimony that I claim the above I have edges lapping each other, substantially as and hereunto subscribed my naine in the presence 1o for the purpose seg fort-h. of two witnesses.

2. The rails B and strap E in combina- Y tion with the diamond-shape slats7 D, arranged ADLLBERT S GAL substantially as described, whereby the beveled Witnesses: or inclined edges thereot' will lap each other, RODERIC H. DALEY, for the purpose specified. CHARLES B. CAMPE. 

